What type of light is used in Blue Light therapy?

What are side effects from sun damaged skin? And would you recommend Blue Light Levulan for damaged skin?

I have very fair, sensitive skin. Is the blue light powerful enough to irritate or burn my skin? I sunburn very easily.

How does a Blue Light treatment work?

I've tried intense pulse light therapy to try to get rid of my acne, but it wasn't as effective as I'd hoped. Is Blue Light therapy a better choice for this particular condition?

I've got scares that are over 10 years old can they still be treated?

My dad has psoriasis. We went to the sea yesterday and he was in the water for 20 minutes. After he came out, a transparent insect came out of one of the psoriatic patches. Is this a parasite? Do parasites live on psoriatic skin?

Can I have blue light treatment for skin cancer? In light of my asthma, is it safe to undergo blue light treatments?